{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-2BW42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-2BW42","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-2BW42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2BW42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S00 power contactor, 3RT1017-2BW42, 48 VDC coil, spring-loaded terminals, 5.5 kW at 400 V AC-3, IP20.","salesMarkdown":"## SIRIUS S00 power contactor with 48 VDC coil The Siemens 3RT1017-2BW42 is a SIRIUS S00 power contactor with a 48 VDC coil, spring-loaded terminals for the main circuit, and a screw and snap-on mount onto 35 mm DIN rail per EN 50022. It's rated for motor switching up to 5.5 kW at 400 V and 690 V in AC-3 duty, and handles 8.5 A in AC-4 for reversing or plugging applications. The DC coil pulls 3.3 W to close and holds at the same power, so no extra hold-in economizer is needed — just watch the polarity on the free-wheel diode if you're wiring inductive loads downstream. The 48 VDC coil isn't just about pull-in voltage; the contactor's auxiliary switching capacity at DC matters when you're breaking inductive loads on the same panel. At 24 V it switches 10 A, at 60 V it drops to 2 A, at 110 V it handles 1 A, and at 220 V it's down to 0.3 A. Those numbers follow the DC arc extinction curve — the higher the voltage, the harder it is to snuff the arc in air. If you're switching a 48 VDC solenoid bank, stay under 2 A per contact or use a suppressor. ## Panel integration — DIN rail, spring terminals, and spacing The S00 frame is 45 mm wide, 60 mm tall, and 73 mm deep — a compact footprint that fits standard 35 mm DIN rail. Spring-loaded terminals accept 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG).","metaTitle":"Siemens 3RT1017-2BW42 SIRIUS Contactor, 48 VDC Coil, S00","metaDescription":"Siemens 3RT1017-2BW42 SIRIUS power contactor, size S00, 48 VDC coil, spring-loaded terminals, 5.5 kW at 400 V AC-3. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"48 V","On The Front":"IP20","Initial Value":"0.85","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"5.5 kW","at 690 V rated value":"5.5 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 mm²)","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","Closing power of magnet coil at DC":"3.3 W","Holding power of magnet coil at DC":"3.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (24 ... 14)","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"22 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=286097&mlfb=3RT1017-2BW42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2BW42/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1017-2BW42 and how do I get a price?","answer":"We source and quote the 3RT1017-2BW42 to order against an RFQ. Availability and current pricing are confirmed at quote time — send us your quantity and target delivery window."},{"question":"Will 3RT1017-2BW42 drop into a panel specified around 3RT1016-2AP02 without rewiring?","answer":"Both are S00 frame contactors on the same 45 mm footprint with the same DIN rail clip. The main difference is the coil voltage — the 3RT1017-2BW42 runs on 48 VDC, the 3RT1016-2AP02 on 230 VAC. If your panel already has a 48 VDC control supply, it's a straight mechanical swap; if not, you'll need to add a power supply or change the coil circuit."},{"question":"What compliance documentation does Siemens provide for 3RT1017-2BW42?","answer":"Siemens provides RoHS and REACH declarations, plus IEC/EN 60947-4-1 compliance for the contactor. UL and CSA listings are standard for the SIRIUS line. Specific certificates are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-2BW42","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1017-2BW42 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}